body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background: #fff
}

body,
ul {
    margin: 0;
    padding: 0
}

#con {
    position: relative;
    width: 316px;
    height: 316px;
    margin: 0 auto;
}

#ul {
    background: lemonchiffon;
    width: 308px;
    height: 306px;
    padding-top: 2px;
    position: relative;
    border: 4px solid #000;
    border-radius: 4px;
    margin: 20px auto
}

#ul li {
    width: 100px;
    height: 100px;
    background: url(logo.jpg) pink;
    float: left;
    list-style-type: none;
    margin: 0 0 2px 2px;
    transition: .3s;
    line-height: 100px;
    text-align: center;
    color: white;
    text-shadow: 1px 1px 1px #000;
    font-size: 22px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none
}

#ul li.active {
    background: lemonchiffon
}

#img {
    width: 100%;
    position: absolute;
    transition: .3s;
    opacity: 1;
    left: 50%;
    margin-left: -150px;
    top: 0;
    width: 300px;
    height: 300px
}

#click {
    width: 100px;
    height: 30px;
    line-height: 30px;
    border: 1px solid #000;
    text-align: center;
    margin: 20px auto;
    cursor: pointer
}